Engine valve and casing



C. C. HUGHES ET AL ENGINE VALVE AND CASING Oct. 30, 1923. Q 1,472,652

Filed Feb. '7, 1922 2 Sheets-Sheet 1 Oct. 30 1923.

,c. c. HUGHES ET AL ENGINE VALVE.AND CASING Filed Feb. 7, 1922 2 sneaks-sheet a] I 0 I m Maze-aged; 76

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Patented @652. 30, 1923.

cHAnLns c. HUGHES Ann aoLANn o. fen'rrnnny, or PHILADELPHIA, PENNSYLVANIA.

r. FENT OFFICE.

Enema VALVE AND CASING.

Applicationv filed February 70 all whom it may concern 1 Be it known that we, CHARLES C. and ROLAND O. BETTERLY, citizens of the United States, residing at Philadelphia, in

the county of Philadelphia, State of Pennsylvania, have invented certain new and useful Improvements in Engine Valves and Casings; and we do hereby declare the 1 01;

improvements in explosive engines and.

particularly to valves therefor.

One object of the invention isto provide a valve of the rotary :type which is so con structed and arranged that the upperand. lower faces, as well as the peripheral face,

may be easily lubricatedf Another object of the invention is to pro-5 vide a valve of the rotary typewhich is mounted within the head of j the engine cylinder in such a manner that only a small portion, equal to the size of the port-thereof, is subjected. to contact of the exploding gases. 1 a

Another object is to provide a valve of this character which may be easily and quickly removed from the-head of J the cylinder without dismantling. the engine or removing the head.

Other objectsand advantages will be apparent from the following description when taken in connection with the accompanying drawing. 1 1 i In the drawing, 4 5' Figure 1 is a top plan view of a portion of an engine made in accordance with the invention and partly in section. 1

Figure 2 is a vertical sectional detailed view on the line 2-2 of Figure 1.

Figure 3 is a perspective view of the valve removed from the engine.

Referring particularly to the accompanying drawings 10 represents the engine cylinder which has the explosion chamber 11, and the water jacket 12, the upper end of the cylinder being open as shown at 13. Mounted on the open end of the cylinder is the head 14 having in the center of its lower end an upwardly arched recess 15, which serves to close the said opening of the cylinder, a suitable packing 16 bein disposed between the cylinder and the hea This head is'provided with the water jacket HUG ES 7, 1922. Serial No. 534753.

17 .and has a port 18 in one side leading head is a vertical passage 19 which extends at right anglesto the port 18. Formed in the interior of the head 14, and depending downwardly thereinto, is a cage 14', the same having openings 20 which communicate with the surrounding water jacket 17. This cage has its upper end open to receive the casing 21 which has the central hollow stem. 22 surrounded by the water jacket 23,

said casing having openings 24 registering with the openings 20, wherebya free movement of water through the head and casing is permitted.

The upper end of the casing has a laterally extending flange 25, which is secured to the upper endof the head by the bolts 25. Formed in one side of the lower portion of the casing is a curved passage 26, the opposite ends of which communicate with the ports 1819. xRotatab'ly mounted'between the bottom walls of the cage 14" and the casing 21 is the rotary valve 27, said valve having a port 28 adapted to register with the port 19 andthe passage 26, to permit the egress ofthe burnt gases. This valve is formed with a stem .29, which extends upwardly through the stem 22 above the intojthehead. In the lower portion of the l head 14 and within the upper extension 22' l head: 14... Apacking 35 composed of av plurality of'thin sheets of soft metal, such as brass, is disposed between the head and flange'25, as clearly seen in the sectional View of Figure 2.

Also formed through the side of the head 14 is a port 18, which leads into a curved passage 26, said passage 26 communicating with the vertical passage 19' leading into the end of the cylinder.

As the valve 27 rotates the port 28 reg isters successively with the passages 1819 and 1819, so that the burnt gas will be permitted to exhaust from the cylinder in the first instance and the live gases permitted to enter the cylinder in the second instance.

It will be understood that the mechanism described is duplicated for each cylinder of the engine, and that the shaft 33 has a gear 32 for each gear 31. It will of course be understood that the valves are so arranged that the intake and exhausts of the different cylinders will be in proper succes- SlOIl.

Particular attention is called to the cage 14" and the casing 21, the latter of which supports the valve 27 and its stem 29', such construction permitting quick and easy removal o t-the valve from" the head of the cylinder without any other removal of engine parts. It will be noted that when the brackets 34 together with the shaft 33 and its gears 32, are removed, the casing 21, together with the valve 27, stem 29, and gear 31, may be bodily lifted from the cage 14: after the bolts 25 have been removed.

Formed longitudinally 1 and centrally through the stem 29 is an oil channel 36,

which leads down to the disk27 where a' horizontalradial branch 37 extends to the periphery of the disk; From the branch 37 extends the vertical branches 38, leading respectively to the upper and lower faces of the disk. In the faces of the cage and casings with which the upper and lower faces engage, there are formed the oil passages 3940 respectively. a

It will be noted that between the lower wall of the cage 14 and the bottom wall H of the heads 14, there is formed a space 41 in which water passes so that the heat from the cylinder'will not come in direct contact with the casing or valve.

It will be noted also that the only point onthe' valve 27 which comes into direct contact with the exploding gases is thatpo'r tion of the valve 27 which passes over the ports 19 and 19]; the remainder of the valve 27 being protected by the water jack eted lower Wall of the cage 14 against any and all pressure and heat from within the engine cylinder. V

It will be noted that the upperand lower faces of the valve 27 converge toward the periphery of the body of the valve, vwhereby to permit of greater resistance to distortion; .toassist in equalizing the, wear of the valve; to increase the area of thebearing surface; and to aid in the proper and eflicient lubrication of the valve.

- What is claimed is z p 1. The combination with an enginecylinder, having a removable head at the top, a depending cage sup-ported in the head, a'r'emovable'ca'sing in the cage and having a'water jacket therearound, the casing and 3. The combination with an engine cyl inder having a head formed with ports, a removable cage in the head having passages registering with and forming parts of saidport's, and a rotary' valve mounted in the head out of contact with the" exploding gases in the cylinder, except for an areaequal to the area of said ports and provided with ports registrable with the ports of. the head.

' In testimony whereof, we alfi'x our signatures, in the presence of two witnesses:

CHARLES C. HUGHES Witnesses:

CHAS. R. HUGHES, WALTER K. W001).

ROLAND o; BETTER-LY. 

